Here are a handful of useful cards that require you to discard, so you need cards in your hand to use these to the fullest: Born to Drive, Team Avatar, or Abolish
The soonest well see another Core Set is Summer 2022
As a 4-mana card with at least 3 keywords and a significant resistance, she is a good body to keep on the board, besides her Corrupted ability, which steals cards from each opponent with 3 or more Poison counters, and gives us recursion through our opponents' decks
Powerbalance checks off all the relevant boxes for me: its a callback to an awesome card from years past, it forces interaction (in other words, makes me have to pay attention to the game), it gives you free stuff, and it allows for fun top-deck manipulation
Its a step in the right direction, but still well below the threshold to see EDH play
We wont add Brine Elemental for the pickles lock, since thats not our style of game